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Finding the Fourth Proportional to 75,159.88, 103,720.60 and 41,168.07

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Solution

The fourth proportional to 75,159.88, 103,720.60 and 41,168.07 is: 56,811.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,159.88 : 103,720.60 = 41,168.07 : x
  2. Step 2: Convert to fraction form
    75,159.88/103,720.60 = 41,168.07/x
  3. Step 3: Cross multiply
    75,159.88x = 103,720.60 × 41,168.07
  4. Step 4: Simplify right side
    75,159.88x = 4,269,976,921.24
  5. Step 5: Solve for x
    x = 4,269,976,921.24/75,159.88
  6. Step 6: Final answer
    x = 56,811.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.